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Pattern welding
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Pattern welding is a smithing practice of folding and/or twisting metal, possibly multiple pieces that are forge-welded. This results in differing layers in a pattern, hence the name. This process was
A contemporary pattern-welded sword blade made by Danish swordsmith Ejvind Nørgård. The blade shows a chevron pattern with opposing twists and straight laminate alternating.
A contemporary pattern-welded sword blade made by Danish swordsmith Ejvind Nørgård. The blade shows a chevron pattern with opposing twists and straigh
An image of a modern pattern welded knife blade, showing the dramatic patterning on the side below, and the layering of the steel in the spine above.
An image of a modern pattern welded knife blade, showing the dramatic patterning on the side below, and the layering of the steel in the spine above. Acid etching darkens the 1080 plain carbon steel more than it does the 15N20 low alloy nickel steel, producing alternating bands of light and dark on the surface.
Damascus steel
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Damascus steel is the high-carbon crucible steel of the blades of historical swords forged using the wootz process in the Near East, characterized by distinctive patterns of banding and mottling remin
Pattern welding
…results in differing layers in a pattern, hence the name. This process was independently discovered by many ironworking societies. Often wrongly called Damascus steel, blades forged in this manner display bands of slightly different patterning along their entire length. These bands can be highlighted for cosmetic…
Close-up of a 13th-century Persian-forged Damascus steel sword
Close-up of a 13th-century Persian-forged Damascus steel sword
A bladesmith from Damascus, c. 1900
A bladesmith from Damascus, c. 1900
Macroscopic section of crucible steel (left) and false color labeling (right) showing rafts rich in carbide-forming elements (CFEs), which lead to clu
Macroscopic section of crucible steel (left) and false color labeling (right) showing rafts rich in carbide-forming elements (CFEs), which lead to clustered cementite spheroids, as well as divorced cementite spheroids.
Pattern on a modern "Damascus knife" produced in Germany.
Pattern on a modern "Damascus knife" produced in Germany.